Computer · Building Materials
उत्खनन (quarrying) की निम्नलिखित में से कौन सी विधि महंगी, नरम और स्तरित चट्टानों (stratified rocks) जैसे बलुआ पत्थर, चूना पत्थर, लैटेराइट, संगमरमर और स्लेट के लिए उपयुक्त है?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1उत्खनन (Excavating)
- 2ब्लास्टिंग (Blasting)
- 3वेजिंग (Wedging)✓
- 4तापन (Heating)
सही उत्तर देखें
वेजिंग (Wedging)
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